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ASME B16.5/DIN2527/ASTM A105/ASTM A182 (NPS1/2-NPS24) FLANGE

  • ASME B16.5/DIN2527/ASTM A105/ASTM A182 (NPS1/2-NPS24)  FLANGE
  • ASME B16.5/DIN2527/ASTM A105/ASTM A182 (NPS1/2-NPS24)  FLANGE
  • ASME/ANSI B16.5 Anchor Flange
  • ASME B16.5/DIN2527/ASTM A105/ASTM A182 (NPS1/2-NPS24)  FLANGE
  • ASME B16.5/DIN2527/ASTM A105/ASTM A182 (NPS1/2-NPS24)  FLANGE
  • LN FLANGE
  • 1500lb RTJ Swivel Ring Flange
  • ASME B16.5/DIN2527/ASTM A105/ASTM A182 (NPS1/2-NPS24)  FLANGE
  • Long Neck Flange
  • ASME B16.5/DIN2527/ASTM A105/ASTM A182 (NPS1/2-NPS24)  FLANGE
  • ASME B16.5/DIN2527/ASTM A105/ASTM A182 (NPS1/2-NPS24)  FLANGE
  • ASME B16.5/DIN2527/ASTM A105/ASTM A182 (NPS1/2-NPS24)  FLANGE
  • ASME B16.5/DIN2527/ASTM A105/ASTM A182 (NPS1/2-NPS24)  FLANGE
  • ASME B16.5/DIN2527/ASTM A105/ASTM A182 (NPS1/2-NPS24)  FLANGE
Model No.︰DN15-DN5000
Brand Name︰MIL
Country of Origin︰China
Unit Price︰-
Minimum Order︰-
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Product Description

Flanges

We offer a comprehensive range of Flanges including Slip on Flanges (SORF), astm a182 flanges, monel 400 flanges, astm a181 flanges, Weld Neck Flanges, Blind Flanges, Socket Weld Flanges, Spectacle Flanges. These flanges are designed using finest grade of stainless steel to ensure long service life. Our range is available in ANSI, DIN and BS standards. Our Slip on Flanges (SORF), Socket Weld Flanges (SWRF), Weld Neck Flanges are widely acknowledged for dimensional accuracy, chemical resistance, high tensile strength and durability.

Slip On Flanges (SORF)
Slip on flanges are bored slightly larger than the outer Diameter of the matching pipe. The pipe slips into the flange prior to welding both inside and outside to prevent leaks. 

Weld Neck Flanges (WNRF)

Weld Neck Flanges (WNRF) is designed in line with international quality standard. These flanges come with welding neck, which is hot formed from a circular section of steel plate having a small co-axial hole in the center. 

Socket Weld Flanges (SWRF)

Socket Weld Flange (SWRF) is a device, which is welded to the end of pipe so that the pipe can be bolted to another pipe with a similar flange. The stainless steel socket weld flanges allow a pipe to be disconnected and reconnected with ease

Blind Flanges (BLRF)

Blind Flange (BLRF) is used to close the end of the pipe, valves, pressure vessel openings and other channels where one end needs to be blanked off. These are developed using quality stainless steel and are widely used in paper and pulp industries. 

Lapped Joint Flanges

Lapped Joint Flanges are mainly used in those piping, which is fitted with the lapped pipe or with the stub end lap joint flange. This arrangement is perfect for systems that require dismantling for inspection and cleaning. 

Screwed Flange is available in stainless steel, carbon steel and nickel alloy material. Designed in conformation with international quality standard, our range finds a wide application in power plant, chemical & food and drilling & well building industries. We also provide screwed flange as per the drawings and specifications provided by the clients.

Specifications :
Stainless steel : ASTM A 182, A 240

Grade : F 304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H,904L,

Duplex stainless steel : UNS S31803, 2205,

Super duplex stainless steel : UNS S32750

Carbon steel : ASTM A 105, ASTM A 181

Alloy steel : ASTM A 182, GR F1, F11, F22, F5, F9, F91

Nickel alloys : Monel 400 & 500, inconel 600 & 625, incolloy 800, 825, hastelloy C22,C276

Copper alloys : Copper, brass & gunmetal

Size : 1/8" NB TO 48"NB

Class : 150, 300, 400, 600, 900, 1500 & 2500

Standards :
•ANSI: ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36, ANSI B16.48
•DIN: DIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655, DIN2656, DIN2627, DIN2628, DIN2629, DIN 2631, DIN2632, DIN2633, DIN2634, DIN2635, DIN2636, DIN2637, DIN2638, DIN2673
•B.S: BS4504, BS4504, BS1560, BS10

Forged Flanges
ASTM / ASME / ANSI / ASA Standards
a. Standards of Flanges
B16.47 Large Diameter Steel Flanges: NPS 26 through NPS 60 This Standard covers pressure-temperature ratings, materials, dimensions, tolerances, marking, and testing for pipe flanges in sizes NPS 26 through NPS 60 and in ratings Classes 75, 150,0300, 400, 600, and 900. Flanges may be cast, forged, or plate (for blind flanges only) materials. Requirements and recommendations regarding bolting and gaskets are also included.

The American Society of Mechanical Engineers issues standards for mechanical and piping design. ASME standard B16.47 covers large diameter pipes up to a 60-inch bore. ASME standard B16.7 series A flanges are equivalent to MSS SP44 flanges. ASME standard B16.7 series B matches API 605 flanges.

B16.5 Pipe Flanges and Flange Fittings standard covers pressure-temperature ratings, materials, dimensions, tolerances,marking, testing, and methods of designating openings for pipe flanges and flanged fittings.The standard includes flanges with rating class designations 150, 300, 400, 600, 900, 1500, and 2500 in sizes NPS 1/2 through NPS 24, with requirements given in both metric and U.S units. The Standard is limited to flanges and flanged fittings made from cast or forged materials, and blind flanges and certain reducing flanges made from cast, forged, or plate materials. Also included in this Standard are requirements and recommendations regarding flange bolting, flange gaskets, and flange joints.

API Standards
API flanges are designed to handle very high pressures and temperatures. API flanges have a smaller bolt circle than MSS flanges. All API flanges are ring joint flanges. API flange standards start with a number followed by a letter. API standard 17D is the specification for sub-sea well head flanges.

"The Differents Between API and ANSI Flanges"
The difference between ASME/ANSI and API flanges is the fabrication material and the higher rated API operating pressure. ASME/ANSI flanges are common in industrial process systems handling water, steam, air and gas. API flanges are manufactured for high strength operating refinery systems with products such as oil and explosive gases. The flange standards API 6A and ASME/ANSI B16.5 are similar dimensionally - but the API 6A flanges are rated for higher pressures as shown in the table below


Flange standard series
American Standard Series

ASME/ANSI B16.5 Class 150 BL
ASME/ANSI B16.5 Class 300 BL
ASME/ANSI B16.5 Class 600 BL
ASME/ANSI B16.5 Class 900 BL
ASME/ANSI B16.5 Class 1500 BL
ASME/ANSI B16.5 Class 2500 BL
ASME B16.47 Series A/MSS SP-44 Class 150 BL
ASME B16.47 Series A/MSS SP-44 Class 300 BL
ASME B16.47 Series A/MSS SP-44 Class 600 BL
ASME B16.47 Series A/MSS SP-44 Class 900 BL
ASME B16.47 Series B/API 605 Class 75 BL
ASME B16.47 Series B/API 605 Class 150 BL
ASME B16.47 Series B/API 605 Class 300 BL
ASME B16.47 Series B/API 605 Class 600 BL
ASME B16.47 Series B/API 605 Class 900 BL
ASME B16.48 Class 150
ASME B16.48 Class 300
ASME B16.48 Class 600
ASME B16.48 Class 900
ASME B16.48 Class 1500
ASME B16.48 Class 2500
ASME/ANSI B16.5 Class 150 LJ
ASME/ANSI B16.5 Class 300 LJ
ASME/ANSI B16.5 Class 600 LJ
ASME/ANSI B16.5 Class 900 LJ
ASME/ANSI B16.5 Class 1500 LJ
ASME/ANSI B16.5 Class 2500 LJ
ASME B16.36 Class 300, Welding Neck, Slip-On and Threaded
ASME B16.36 Orifice Flanges Class 400, Welding Neck2
ASME B16.36 Orifice Flanges Class 600, Welding Neck2,3
ASME B16.36 Orifice Flanges Class 900, Welding Neck2
ASME B16.36 Orifice Flanges Class 1500, Welding Neck2
ASME B16.36 Orifice Flanges Class 2500, Welding Neck2
Ring Joint Facings ASME/ANSI B16.5 & B16.47-1
Ring Joint Facings ASME/ANSI B16.5 & B16.47-2
Ring Joint Facings ASME/ANSI B16.5 & B16.47-3
Ring Joint Facings ASME/ANSI B16.5 & B16.47-4
ASME/ANSI B16.5 Class 150 SW
ASME/ANSI B16.5 Class 300 SW
ASME/ANSI B16.5 Class 600 SW
ASME/ANSI B16.5 Class 1500 SW
ASME/ANSI B16.5 Class 150 SO
ASME/ANSI B16.5 Class 300 SO
ASME/ANSI B16.5 Class 600 SO
ASME/ANSI B16.5 Class 900 SO
ASME/ANSI B16.5 Class 150 WN
ASME/ANSI B16.5 Class 300 WN
ASME/ANSI B16.5 Class 600 WN
ASME/ANSI B16.5 Class 900 WN
ASME/ANSI B16.5 Class 1500 WN
ASME/ANSI B16.5 Class 2500 WN
ASME B16.47 Series A/MSS SP-44 Class 150 WN
ASME B16.47 Series A/MSS SP-44 Class 300 WN
ASME B16.47 Series A/MSS SP-44 Class 600 WN
ASME B16.47 Series A/MSS SP-44 Class 900 WN
ASME B16.47 Series B/API 605 Class 75 WN
ASME B16.47 Series B/API 605 Class 150 WN
ASME B16.47 Series B/API 605 Class 300 WN
ASME B16.47 Series B/API 605 Class 600 WN
ASME B16.47 Series B/API 605 Class 900 WN

ANSI/AWWA C207-07, AWWA Standard for Steel Pipe Flanges for Waterworks Service-Sizes 4 In. Through 144 In. (100 mm Through 3,600 mm)
AWWA C207 Class B-Ring and Blind Flanges
AWWA C207 Class B-Hub and Blind Flanges
AWWA C207 Class D-Ring and Blind Flanges
AWWA C207 Class D-Hub and Blind Flanges
AWWA C207 Class E-Ring and Blind Flanges
AWWA C207 Class E-Hub and Blind Flanges
AWWA C207 Class F-Ring and Blind Flanges

BS Standards
BS 10:1962    Specification for Flanges and Bolting for Pipes, Valves and Fittings (covering plain, boss, integrally cast or forged, and welding neck type flanges).
BS 1560 : WELDING NECK FLANGE, SOCKET WELDING FLANGE, SLIP-ON BOSS FLANGE, BLIND FLANGE, SCREWED BOSS FLANGE, LAPPED FLANGE. Pressure Class : 150 , 300 , 400 , 600 , 900, 1500 , 2500
BS 4504(ISO 7005-1: 1992 (E)    Specification for Steel Flanges (pressure ranges PN 2.5 to PN 40 and nominal sizes up to DN 4000)

BS 3293 Class 150 SO
BS 3293 Class 300 SO
BS 3293 Class 600 SO
BS 3293 Class 150 WN
BS 3293 Class 300 WN
BS 3293 Class 600 WN

DIN Flanges

DIN Flange Standards:
DIN 2527 Blind flange - PN6-PN 100
DIN 2576 Flat flange for welding - PN 10
DIN 2642 Lapped flange - PN 10
DIN 2655 Lapped flange - PN 25
DIN 2656 Lapped flange - PN 40
DIN 2641 Lapped flange - PN 6
DIN 2673 Lose flange and ring with neck for welding - PN 10
DIN 2561 Oval flange, with neck threaded - PN 10 and PN 16
DIN 2558 Oval flange, with neck threaded - PN 6
DIN 2566 Threaded flange with neck - PN 10 and PN 16
DIN 2630 Welding neck flange - PN 1 and PN 2.5
DIN 2632 Welding neck flange - PN 10
DIN 2637 Welding neck flange - PN 100
DIN 2633 Welding neck flange - PN 16
DIN 2638 Welding neck flange - PN 160
DIN 2634 Welding neck flange - PN 25
DIN 2628 Welding neck flange - PN 250
DIN 2629 Welding neck flange - PN 320
DIN 2635 Welding neck flange - PN 40
DIN 2627 Welding neck flange - PN 400
DIN 2573 Welding neck flange - PN 6
DIN 2636 Welding neck flange - PN 64
DIN 2631 Welding neck flange - PN6

Material:
Carbon Steel: DIN 17175: ST35.8,ST45.8, ST37.2,ST37, DIN 17173: ST35N
Stainless Steel: W.Nr 1.4301, W.Nr 1.4306, W.Nr 1.4401, W.Nr 1.4404, W.Nr 1.4541
Duplex Stainless Steel: W.Nr 1.4362, W.Nr1.4417, W.Nr1.4462, W.Nr1.4460, W.Nr1.4501, W.Nr1.4410, W.Nr 1.4507

API Standards
API 605 Large-diameter Carbon Steel Flanges (nominal Pipe Sizes 26 Through 60; Classes 75, 150, 300, 400, 600 And 900)


MSS Standards
MSS SP-9 standard for spot facing flanges.
MSS SP-44 standard for steel pipeline flanges. MSS SP-60 standard for connecting flange joint.
MSS SP-9   standard for spot facing flanges.
MSS SP-44  standard for steel pipeline flanges.
MSS SP-60  standard for connecting flange joint.

AS Standards
AS4087-2004 Metallic flanges for waterworks purposes
AS2129 Flanges for Pipes, Valves and Fittings

AWWA Standards
AWWA C207   Steel Pipe Flanges for Waterworks Service--Sizes 4 In. Through 144 In. (100 mm Through 3600 mm).

EN1092-1 Standards
EN1092-1   Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories.

GOST Standards
12820-80   Russian pipe flanges standard for flat type.   
12821-80   Russian pipe flanges standard for weld neck type.  

JIS Standards
B2220   Steel Welding Pipe Flanges.

KS Standards
B1503   Steel Welding Pipe Flanges.

SABS/SANS Standards
SANS-1123   South African pipe flanges standard.

TOTAL Standards
TOTAL GS EP PLR 222 Carbon steel flanges and branch outlet fittings and forged
components for pipelines (sweet service)
TOTAL GS EP PLR 223 Carbon steel tees for pipelines (sweet service)

UNI Standards
UNI 2276-67 Flat Flange.
UNI 2277-67 Flat Flange.
UNI 2278-67 Flat Flange.
UNI 6083-67 Flat Flange.
UNI 6084-67 Flat Flange.
UNI 6088-67 Lap Joint Flange, Loose Flange.
UNI 6089-67 Lap Joint Flange, Loose Flange.
UNI 6090-67 Lap Joint Flange, Loose Flange.
UNI 2299-67 Lap Joint Flange, Loose Flange.
UNI 2300-67 Lap Joint Flange, Loose Flange.
UNI2280-67 Weld Neck Flange.
UNI2281-67 Weld Neck Flange.
UNI2282-67 Weld Neck Flange.
UNI2283-67 Weld Neck Flange.
UNI2284-67 Weld Neck Flange.
UNI2285-67 Weld Neck Flange.
UNI2286-67 Weld Neck Flange.
UNI2253-67 Threaded Neck Flange.
UNI2254-67 Threaded Neck Flange.
UNI6091-67 Blind Flange.
UNI6092-67 Blind Flange.
UNI6093-67 Blind Flange.
UNI6094-67 Blind Flange.
UNI6095-67 Blind Flange.
UNI6096-67 Blind Flange.
UNI6097-67 Blind Flange.

b. Raw material:
All pipe flanges in carbon, stainless, alloys and chrome steel materials. ( See Technology pages )

c. Flange types:
Weld Neck (WN), Slip on (SO), Blind (BL), Threaded (THR), Socket Weld (SW), Lap Joint (LJ), Orifice Flanges, RTJ and custom flanges.
d. Size:
Sizes Range from 1/2" to 80", DN15-DN2000. 
e.Pressure classes:
ANSI, ASME, ASTM, BS10 - Lbs/Psi 150, 250, 300, 350, 400, 600, 900, 1500, 2500
JIS B2220, KS1503 - 5K, 10K, 16K, 20K, 30K
DIN, UNI, EN1092-1, BS 4504, GOST12820/12821-80 etc - PN6, PN10, PN16, PN25, PN40, PN63, PN100
SANS/SABS 1123 - Class 600/3, 1000/3, 1600/3, 2500/3, 4000/3

Flanges:
 - Com Pescoço (Welding Neck), Encaixe (Socket Welding), Sobreposto (Slip On), Roscado (Threaded), Cego (Blind), Solto (Lap Joint), Pescoço com tomada de pressão (Welding Neck Orifice).
 
- Diâmetro nominal de 1/2 polegada até 114 polegadas, em todas as espessuras conforme ANSI B36.10 e ANSI B36.19 ou conforme desenho.
 
- Norma dimensional ASME B16.5 / B16.36 / B16.47 Serie “A” e Serie “B”/ MSS SP-44 / API 605 / API 6ª / API 17D / AWWA C207, ou Forjado Especial conforme desenho.
 
- Material ASTM A-105 / ASTM A-182 Gr. F5, F5a, F9, F11, F12, F304, F304H, F304L, F316, F316H, F316L, F317, F317H, F317L, F321, F321H, F321H, F347, F347H, F347L/ ASTM A-350 Gr.LF1, LF2, LF3 / ASTM A-694 Gr. F42, F46, F48, F50, F52, F56, F60, F70, F75.
 
Figura Oito:
 - Figura oito (Spectacle Blind), Anel espaçador e Raquete (Spacer Ring and Paddle).
 
- Diâmetro nominal de 1/2 polegada até 42 polegadas ou conforme desenho.
 
- Norma dimensional N120 Rev.C / ASME B16.48, ou Forjado especial conforme desenho.
 
- Material ASTM A-36 / ASTM A-283 Gr.C / ASTM A-285 Gr.C / ASTM A-515 Gr.70 / ASTM A-516 Gr.55, Gr.60, Gr.70 / ASTM A-387 Gr.TP5a, TP9, TP11, TP12 / ASTM A-694 Gr.F42, F46, F48, F50, F52, F56, F60, F70 / ASTM A-240 TP304, TP304H, TP304L, TP316, TP316H, TP316L, TP317, TP317H, TP317L, TP321, TP321H, TP321L, TP347, TP347H, TP347L.

Chemical Requirements (Composition, %, max)

Material Symbol C Mn P S Si Ni Cr Mo Cu N V Co
ASTM A105 0.35 0.60-1.05 0.035 0.040 0.10-0.35 0.40 0.30 0.12 0.40 _ 0.08 _
ASTM A350 LF2 0.30 0.60-1.35 0.035 0.040 0.15-0.30 0.40 0.30 0.12 0.40 _ 0.08 0.02
ASTM A182 F304 0.08 2.00 0.045 0.030 1.00 8.0-11.0 18.0-20.0 _ _ _ _ _
ASTM A182 F304L 0.03 2.00 0.045 0.030 1.00 8.0-13.0 18.0-20.0 _ _ _ _ _
ASTM A182 F316 0.08 2.00 0.045 0.030 1.00 10.0-14.0 16.0-18.0 2.00-3.00 _ _ _ _
ASTM A182 F316L 0.03 2.00 0.045 0.030 1.00 10.0-15.0 16.0-18.0 2.00-3.00 _ _ _ _
ASTM A182 F321 0.08 2.00 0.045 0.030 1.00 9.0-12.0 17.0-19.0 _ _ _ _ _
EN 10025 S235JR 0.20 1.40 0.045 0.045 _ _ _ _ _ 0.009 _ _
20Mn 0.17-0.23 0.70-1.00 0.035 0.035 0.17-0.37 0.30 0.25   0.25      
20 0.17-0.23 0.60-1.00 0.030 0.020 0.17-0.37 0.25 0.25   0.25      
16Mn 0.13-0.19 1.20-1.60 0.030 0.020 0.20-0.60 0.30 0.30   0.25      

 

Mechanical Requirements

Material Symbol Tensile Strength, min, MPa Yield point, min, Mpa Elongation, min, % Reduction of area, min, % Hardness, max, HB Min. Impact
Average, J
Test Temperature, °C
ASTM A105 485 250 22 30 187    
ASTM A350 LF2 485-655 250 22 30   20 -46
ASTM A182 F304 515 205 30 50      
ASTM A182 F304L 485 170 30 50      
ASTM A182 F316 515 205 30 50      
ASTM A182 F316L 485 170 30 50      
ASTM A182 F321 515 205 30 50      
20Mn 450 275 24 50 197    
20
Norsok L005 Compact Flange
Bigger dimensions Limited to : 48" (CL 1500)- 24" (CL 2500)
Higher Pressure Classes Limited to CL 2500
Swivel flanges Not available
Adapted face angle Fixed angle
Seal ring types adapted to specific application 1 Sealring type : IX
Quality Open standard, dominated by flange factories.
Availibility Bolting Material B7 / L7
Engineering and on-site support Close to non-existent
More practical temperature limits -100°C to +250°C
 
A Summary of the DNs applicable to each rating class is given in Table
DN NPS CL600 CL900 CL1500  CL2500
15 1/2" Equal to CL2500 Equal to CL2500 Equal to CL2500 *
20 3/4" *
25 1" *
40 1 1/2" *
50 2" Equal to CL1500 Equal to CL1500 * *
65 2 1/2" * *
80 3" Equal to CL900 * * *
100 4" * * *
125 5" * * *
150 6" * * * *
200 8" * * * *
250 10" * * * *
300 12" * * * *
350 14" * * * *
400 16" * * * *
450 18" * * * *
500 20" * * * *
550 22" * * * *
600 24" * * * *
650 26" * * * *
700 28" * * * *
750 30" * * * *
800 32" * * * *
850 34" * * * *
900 36" * * * *
950 38" * * * *
1000 40" * * * *
1050 42" * * * *
1100 44" * * * *
1150 46" * * * *
1200 48" * * * *
           
Note: "Equal to CL xxxx" means that the dimensions are equal for the referred pressure class. The flangs shall then be marked with the higher pressure class.
 
 

 


 

 

Specifications︰Spectacle Blind Flange allows you to be absolutely sure that an item of equipment is properly and securely blanked off with no possibility of any flow or leakage through a valve during maintenance.

The flow can be diverted to other items of equipment but not just bypassed around the blank as this would compromise the safety function of the Spectacle Blind. The flow has to valve off and pressure relieved prior to loosening Flange bolts and swinging the blind.

Swivel Ring Flange

A Swivel Ring Flange allows easy alignment. An important and critical feature when bolting sub sea pipeline Flanges together for example.

The outer ring Flange of the Swivel Ring Flange assembly is held in position by a retainer ring that freely rotates around the inner weld-neck hub for quickly positioning the bolt holes of the two joining Flanges.

By allowing full rotational adjustment to align flange bolt holes, the swivel ring flange greatly simplifies the final tie-in process. However, the simplicity of the swivel ring flange concept belies the fact that this specialized device must accommodate considerable tangential, shear, and rotational moment loads for installation and long-term service conditions.

Alignment is an important and critical feature when bolting subsea pipeline flanges together. The outer ring flange of the swivel ring flange assembly is held in position by a retainer ring that freely rotates around the inner weld-neck hub for quickly positioning the bolt holes of the two joining flanges.

The Swivel-Ring Flange permits 360° rotation of an outer ring around a hub, to allow easy alignment of bolt holes when attaching to a mating standard flange.

These designs, to ASME and BS5500 codes, are fully supported by corroborative calculations and accommodate the use of hydraulic bolt tensioning equipment. Hundreds of these items have been manufactured for the offshore industry over the past ten years.
Most material grades and testing conditions can be accommodated.

An anchor flange is a device installed on a pipeline to combat axial movement. Resembling a collar, once it is attached to a pipe, the anchor flange is commonly anchored into a concrete foundation. Typically placed onto a section of pipeline as it makes a turn or is at a bridge crossing, the anchor flange is used to prevent the pipeline from moving.

WELDING NECK ANCHOR FLANGES
Anchor flanges are important elements in many thrust-control systems, especially those protecting pipeline pumping stations. Welded into the line and encased in concrete, they immobilize the pipe at predetermined locations and transfer built-up stresses to external structures. For example, in cross-county pipelines end forces of considerable magnitude are generated by internal pressure and temperature changes. A 24" O.D. x 0.594" wall pipe in a pipeline operating at 1100 psi and subjected to a 90° rise in metal temperature, for example, will develop total thrust of 1,000,000 lbs. Unless these forces are properly controlled, they can damage pumps, valves and other close-tolerance equipment. Anchor Flanges may be used to secure subsea piping and risers to platform structures.

One of the common traits of a metal pipeline is its inherent movement caused by the flow of liquid through the pipe, as well as from the expansion and contraction caused by temperature changes. When a pipeline makes a sharp turn, the flow of liquid inside of the pipeline attempts to push the pipe in the direction of the flow. By placing an anchor flange on the pipeline and securing it into position by locking it in a concrete pillar buried deep into the ground, the forces pushing against the pipe are displaced into the earth.

Another area where an anchor flange is commonly used in a pipeline is at river and bridge crossings. Left unanchored, a pipeline has the tendency to sag when crossing large expanses. This is caused from the weight of the liquid flowing inside of the pipeline. By placing an anchor flange at each side of the crossing, the pipeline is held firmly in place and prohibited from moving. The friction of fluid moving through the pipeline will attempt to push the pipeline out of position over time, if not for an anchor.

The same aspects of movement in a large pipeline are duplicated in smaller versions of hydraulic hard line. As the hydraulic fluid is heated, the hydraulic hard line begins to expand and contract. When anchoring a hydraulic line on a machine or in a machine shop, placing an anchor flange in concrete is not an option. The anchor used in this type of application is commonly secured by bolting the anchor to the machine or the building. This requires a flange that resembles a bearing block, with a bolt hole drilled into each corner of the anchor block.

The most common method of fastening a flange to a pipeline or a hydraulic line is to weld the flange solidly into position. This allows the installer to accurately position the flange onto the pipeline where it will offer the most success. When sealing the anchor flange in cement, the concrete is typically poured around the flange and the pipeline after the flange has been welded onto the pipeline.

Norsok L005 Compact Flange

ISO/TC 67/SC 4 Materials, equipment and offshore structures for petroleum, petrochemical and natural gas industries — Drilling and production equipment-Compact flanged connections

The first original Compact Flange designed in full accordance with ASME ANSI BS 8010, Type Approved & Fire Tested.

The Connector is designed to meet ANSI B 16.5, ASME VIII, API 6A/Q1 and other design codes. The design has the approval of Lloyds, DNV and Stoomwezen. Fully fire tested in accordance with API 6FB parts 1 and 2. Also gas tested to meet all aspects of ASME B31.3 Chapter IX (e.g. 1400 bar at 180°C Gas test with bending).

Offering weight savings of up to 88% when compared to the equivalent ANSI Flange. Quick and easy make-up with superior mechanical strength and fatigue performance.

The Compact flange provides everything that a standard flange does not – space saving, reduced weight and, perhaps most importantly, a guaranteed leak-free connection.

The reduced dimensions of the compact flange are achieved by reducing the seal diameter, which in turn, reducesthe cross-section area of the seal faces. Second, the gasket is replaced by a seal ring which works with the seal faces, not against them, to ensure face-to-face mating, so that only low seating forces are required to compress the seal faces. With lower pressures needed, both the size and number of the bolts can be reduced, ultimately providing a smaller, lighter-weight connection – approximately 70-80 percent smaller and lighter than typical ANSI flanges.

The key advantage of the compact flange over the ANSI flange is that it will not leak, thus providing cost savings both in terms of avoiding lost product and maintenance, as well as improving health and safety. In a compact flange, only a small amount of the total bolt pre-load is used to compress the seal. The major part of the bolt pre-load is transferred through the mating flange faces, creating a static face-to-face connection unaffected by the internal pressure or the external loads acting on the flange. Once pressure-tight after assembly, a compact flange, being a static connection, will always remain pressure-tight.

Standard Met︰TYPES

•Weld Neck
•Slip‐On
•Socket Weld
•Blind
•Threaded
•Lap Joint
•Long Weld Neck

Bridas con Cuello para Soldar (Welding Neck)

Bridas Deslizantes (Slip-on)

Bridas Ciegas (Blind)

Bridas con Asiento para Soldar (Socket Welding)

Bridas Roscadas (Threaded)

Bridas para Junta con Solapa (Lap-Joint)

Bridas de Orificio

Bridas forjadas en Acero al Carbono y Acero Inoxidable

MATERIALS

Carbon Steel, Stainless Steel, Duplex & Super Duplex, Alloy steel


STANDARDS GRADES

A105
A350 LF2/LF3
A182 F1,F5,F9,F11,F22
A182 F304/304L, F316/316L
A694 F42,F46,F52,F56,F60, F65,F70
A182 F51,F53,F60


SPECIAL FLANGES

TYPE
•ORIFICE FLANGE
•ANCHOR FLANGE
•SWIVEL RING FLANGE
•WIND TOWER FLANGES
•PADDLE SPACER, BLINDS & SPECTACLE BLINDS (ACCORDING TO ASME B16.48)
Product Image



ASME/ANSI B16.5 Anchor Flange
ASME/ANSI B16.5 Anchor Flange



LN FLANGE
LN FLANGE

1500lb RTJ Swivel Ring Flange
1500lb RTJ Swivel Ring Flange


Long Neck Flange
Long Neck Flange






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